Q: 3.Show the steps involved in the following synthesis Br çO,H CI
A:
Q: аcetone, KOн A B.
A:
Q: Show the balanced chemical equation for the equilibria involved in the prepared acetic acid-sodium a...
A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The buffe...
Q: An unknown compound has the following chemical formula: PtCly where x stands for a whole number. Mea...
A: Here, the unknown compound given is PtClx. No of moles of Pt and Cl are given .we have to find chemi...
Q: uestion 25 The standard cell potential of the reaction is 1.10 V for the cell Zn (s)/Zn²+11Cu²+1Cu (...
A: We have to predict the emf of cell, ∆Go and nature of reaction.
Q: 03 CN What acid-base theory is involved here? The conjugate base of which acid is relatively more st...
A: This question is abased on the Bronsted lowry concept. According to which if a compound guves H+ it ...
Q: An analyst obtained the following data for the percent compound Z in triplicates (n-3) of an insecti...
A: Solution Given that Z in triplicattes (n) = 3 Hence option( D) is co...
Q: The molar heats of fusion and vaporization of ethanol are 7.61 and 26.0 kJ/mol, respectively. Calcul...
A: Given Data : Molar heats of fusion ethanol , Q 1 = 7.61 kJ /mol Molar heat vapo...
Q: What is the correct way of dealing with acid spills? (A Neutralize with a basic solution before wipi...
A: Concentration acids are highly dangerous and can cause damage to skin when in contact.
Q: QUESTION 3 How many moles of solid NaF would have to be added to 1.0 L of 0.152 M HF solution to ach...
A:
Q: Determine if reaction will occur when each set of two compounds are mixed. If reaction does occur, w...
A:
Q: Designate the Brensted-Lowry acid and Brønsted-Lowry base on the left side and also designate the co...
A: Accordind to bronsted lowry concept: An acid is the substance which can donate H+ ions in aqueous s...
Q: What is the relationship between the rates of the forward and reverse reactions of a reversible reac...
A:
Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic i...
A: When 2 molecules of different electronegativity are bonded together covalently the bonding electron ...
Q: 22.00 g sample of nitric acid (HNO3) has a purity of 96.20% by mass. Calculate the following: the ...
A:
Q: In the gas phase reaction 2 A(g) + B(g) = 3 C (g) + 2 D (g), it was found that when 1.00 mol A, 2.00...
A:
Q: 03 CNS Explain acid/base strength of A or B
A: The compound which remove easily H+,this compound is more acidic comparetivly others In case of com...
Q: How many grams of gas are present in each of the following cases? 221 mL of Ar at 0.23 torr and –54...
A:
Q: Please explain why this is non aromatic with 5 pi electrons Me, B.
A:
Q: Determine the concentration of 7.13 g zinc nitrate (MW = 189.4 g/mol) dissolved in 200.0 mL distille...
A: Ans. Molecular weight of zinc nitrate Zn(NO3)2 = 189.4g/mol mole in 7.13 gm of Zn(NO3)2 = 7.1...
Q: The amount of substance formed or consumed at the electrodes is proportional to the quantity of elec...
A: Faraday's law - It states that the induced voltage in circuit is proportional to the rate of cha...
Q: Use Grubbs test to decide if the maximum value is an outlier.
A: Ans: option 4 Normal probability plot of mass spectrometry measurements
Q: Calculate the 90% confidence limit for the mean of the data assuming that only information about the...
A:
Q: Complete the table below. Molecules Types of Chemical Bond Structural Formula H,S Сао M9CI
A: Note - There needs to be a correction in the question. The compound MgCl does not exists. The correc...
Q: The K, for pyridine C,H,N is 1.7 x 10°. а) Calculate K, for its conjugate acid C,H,NH". b) Complete ...
A: Pyridine acts as base as follows; C5H5N + H2O = C5H5NH+OH- ↔C5H5NH+ + OH- As it weakly dissociates ...
Q: What is the correct way of dealing with acid spills? A Leave the acid spill to dry B All of the choi...
A: The options given are,
Q: 12. Three concentration-time graphs for chemical reactions are shown below: Graph 1 Graph 2 Graph 3 ...
A: The concentration-time graph shows the decrease in the concentration of the reactant with time.
Q: H 20 Ph M9B t C H3 CHO
A:
Q: Metal has an atomic radius of 177.76 pm and a cell unit length of 503 pm. What is its unit cell arra...
A: Given, Atomic radius of metal (r) = 177.76 pm Unit length (a) = 503 pm Unit cell arrangement = ? Cry...
Q: True or False For strong electrolytes, such as hydrochloric acid, the molar conductivity decreases s...
A: Strong electrolyte are those substance which dissociate completely. eg: HCl , KCl etc.
Q: 2. Consider a deuterium atom (1 electron, 1 deuteron). Sketch the E vs. B, diagram, including those ...
A: EPR is electron spin resonance which is used to study the species containing unpaired electrons. The...
Q: The percent mass of chlorine in manganese (II) chloride is 56.34% Determine the mass of manganese (I...
A: Given: Mass percent of chlorine i.e. Cl in manganese (II) chloride i.e. MnCl2 = 56.34 % And mass of ...
Q: Calculate the degree of unsaturation. Assign the relevant peaks in the IR spectrum. Assign the peaks...
A:
Q: The potential of the cell Ag|AgI (s)| AgI (aq) |Ag is 0.9509V at 25C. Calculate the solubility of Ag...
A: The half cell reactions of the Ag|AgI (s)| AgI (aq) |Ag cell are, Anode: Ag+I-→AgI++e-Cathode: Ag++e...
Q: When will a change in pressure has no effect on the position of equilibrium? When only side ...
A: Answer Effect of pressure works according to Le -Chatelier's princi...
Q: An analyst obtained the following data for the percent compound Z in triplicates (n=3) of an insecti...
A: Given., the percent compound Z in triplicates (n=3) of an insecticide preparation: 7.47, 6.98, and 7...
Q: Calculate the partial pressure (in Torr) of Hg if a 50.40 g sample of nitrogen-mercury vapor at 23°C...
A:
Q: Seoyeon needs to prepare a 250 mL solution of 0.1000 M Na2CO3. Which glassware should she use to pre...
A: All the instruments mentioned can be used to measure the volume of the solution. Although for titrat...
Q: Can the fluorine ion stabilize a carbanion? Why or why not.
A: In the given problem We have to describe the inductive effect of fluorine.
Q: 7 2.00 8.00 8 1.00 9.00
A:
Q: Experiment: UV-Vis Spectrophotometry and Beer’s Law Absorption of Light of Dyes in Beverages W...
A: A question based on UV-Visible light that is to be accomplished.
Q: Question 3 What is the amount of heat produced by combustion of 125 g of methanol under standard sta...
A:
Q: which will have a higher boiling temperature based on the structure? Explain based on the given stru...
A:
Q: ate GO
A:
Q: Which is NOT true about stock solutions? A Must be rarely touched during experiments B Cannot be con...
A: Stock solution is a concentrated solution that is prepared well in advance. It is then used to prepa...
Q: Two different atoms have six protons each and the same mass. However, one has a negative charge whil...
A:
Q: What is the relationship between the rates of the forward and reverse reactions of a reversible reac...
A:
Q: In the gas phase reaction 2 A(g) + B(g) ⇋ 3 C (g) + 2 D (g), it was found that when 1.00 mol A, 2....
A:
Q: Computation. What is the amount in milligrams of white wax needed to prepare 10 grams of white ointm...
A: This problem will be solved by unitary method. Calculations are done on the following step.
Q: Which is the correct mass percentage of hydrogen in acetamide, C₂H₅NO?
A:
Step by step
Solved in 2 steps
- Below is a chromatogram observed from chemical separation of chlorinated pesticides using gas chromatography. Water samples were pre-treated using solvent extraction technique prior to injection into GC. Complete the statements below so that the sentences will be accurate and logical. Gas chromatography coupled with __________ __________ detector is suitablefor chlorinated pesticide analysis. ii. Peaks that emerge first will represent compounds that are the most __________.Those compounds will also likely have low boiling points and show the leastinteractions with the stationary phase. iii. Major peaks start to emerge after 24 minutes. Heating the GC oven containing the column will likely __________ the time of chromatographic separation. iv. The peak height or area of an analyte is used to determine its __________ in quantitative analysis.Propose a extraction flowchart capable of seperating this mixture into its pure formPls solve this question correctly in 5 min i will give u like for sure What evidence supports or refutes that during an experiment, purified extract is pure caffeine?
- Acetophenone is soluble in diethyl ether, isopropanol, and n-hexane. Identify and justify the most suitable solvent for UV-Vis characterizationCompound A is impure and has a melting point of 90°C - 98°C. After purification, A will most likely have a melting point of: *In a distillation of a mixture of acetone (bp. 56°C and dichloromethane bp. 40°C), a fraction averaging 48°C was collected that never exhibited a plateau temperature.Show using temperature as an indicator of purity what the % of acetone is in this fraction.(Hint: this is similar to the question of refractive index in the last assignment)
- 4. In a distillation of a mixture of acetone (bp. 56°C and dichloromethane bp. 40°C), a fraction averaging 48°C was collected that never exhibited a plateau temperature. Show using temperature as an indicator of purity what the % of acetone is in this fraction. (Hint: this is similar to the question of refractive index in the last assignment) Please answer very soon will give rating surelyAcetophenone is soluble in diethyl ether, isopropanol, and nhexane. Identify and justify the most suitable solvent for UV- Vis characterization?Give an observation and inference hexane is subjected into lucas test and Metallic sodium test
- Draw the structure of benzoic acid and look up for its literature melting point? Please answer very soon will give rating surelySEE PHOTO: Effectiveness of separation. Based on the TLC analysis, did the isolated benzoic acidappear pure relative to the starting mixture? Did the isolated naphthalene look pure?How could the purity of the isolated materials be improved? In the picture: Aq- is Benzoic acid O- is Naphthalene both- is both Benzoic acid and NaphthalenePlease Explain clearly Why couldn’t you use acid-base extraction to separate a ketone and an alcohol? why do we use column chromatography instead? Please explain clearly the benefits of both methods and why is one method preferred over the other.